Jewelblue
HSL
235° · 70% · 38%
Cool Cobalt Sheen
#1d28a5
Notes
Cool Cobalt Sheen (#1D28A5) is a true blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (235°, 70%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary yellow. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#1d28a5
RGB
rgb(29, 40, 165)
HSL
hsl(235, 70%, 38%)
Tints & Shades
Click any swatch to exploreHarmonies
Complementary
Split Complementary